Pile-cutting machine



UNITE IP STATES PAI FFICE.

ISAAC H. COLLER, OF POUGHKEEPSIE, NEV YORK.

FILE.- CUTTING MACHINE.

Specification of Letters Patent No. 16,681, dated February 24, 1857.

T 0 all whom it may concern:

Be it known that I, ISAAC H. OOLLER, of the city of Poughkeepsie, countyof Dutchess, and State of New York, have invented new and usefulImprovements in Machinery for Cutting Files, for whichr Letters Patentwere granted to John WV. Conk lin, Henry L. Sidman, and Eugene lheitner,of Rampa, New York, on August 17, 1852, and numbered 9,1911; and I dohereby declare that the following is a full, clear, and exactdescription of the construct-ion and operation of the same, referencebeing made to the annexed drawings, making a part of this specification,in which- Figure I is a side view; Fig. II, a top view. Fig. 3 is acenter' longitudinal section. Fig. 4 is a section with the side removedshowing the return motion of the carriage; Fig. 5 a front view, Fig. 6 arear view, Fig. 7 a section of file holder.

My invention is an improvement on the patent aforesaid, refers to theautomatic graduation of the blow, and to the holding of the file blankduring the cutting operation. The design of the first part of theinvention is to remedy a defect existing in the patented machine, fromthe directaction of the graduating springs upon the cross piece of thehammer handle, whereby there results a detrimental vibration of the rodsholding the springs.

This part of my invention whereby the above stated defect is obviated,consists in making the connection between the springs and hammer handleof two jointed frames, each consisting of a cross piece upon the springrod receiving the force of the spring, a bell crank upon the extremityof the cross piece of the hammer handle and two rods uniting these partsby joints. The operation being such as to preventall vibration of thespring rods, while the graduating action remains the same.

The second part of my invention consists of a pair of lever jaws,operated simultaneously by screws having opposite threads moving femalescrews or nuts resting against the arms of said jaws; combined with agrooved tang holder resting upon a spring. The aws and tang holderpreventing all lateral or longitudinal movementof the blank, under allthe circumstances of cutting; the spring under the tang holderA enablingthe groove to retain the tang, as well, when said tang is elevated forthe cutting of the point of the file, as when resting flat upon the bed,during the cutting cf the tang end. The details of construction and theoperation of the invention here conside-red will be understood from thefollowing description of the machine.

In the annexed drawings E is the main bed of the machine grooved at thetop with two V grooves for the movable carriage X to moveupon andforming ways for the straight movement of the carriage X and mountedupon the bevel E are two frames or sides D, D, which afford support andjournal bearings to the hammer, cam, and chisel lifter shafts and alsoas guides to the cutter head.

The top of the carriage X is provided with the following device forholding the file represented by the letters Y, C and F, of which aseparate sectional view of Y can be seen in Fig. 7 and which consists ofa right and left screw with two nuts which nuts are pressed by the screwagainst the levers F at one end which closes the other ends against thefile thus preventing it slipping endwise and the tang is held by Caround piece grooved at top to receive the tang and a spring at thebottom which keeps the file up until the roller U presses it down andkeeping it from shifting side wise and together holding it firm upon thebed or carriage X and yet always presenting the part of the file to beoperated upon firm upon the carriage X and to the action of the chisel.

Having secured the file upon the heel or carriage, I will now proceed todescribe the operation of the machine: The machine is placed in motionby pulling the lever K which gives motion to the shipper I and throwsthe belt on the pulley M attached to the cam shaft N and places it inmotion and also the screw B and pressing the nut Z into the screw B. Bymeans of the handle Z the carriage X advances by means of the feedarrangement working by means of an eccentric S communicating with therod Y and in its turn giving motion to the ratchet wheel U and screw Band gives the motion to the carriage. When the point of the file blankhas arrived under the chisel the Vlever L is pulled which communicateswith the stop W which sustains the hammer handle B and the chisel lifterN and pulling the lever L releases and allows the cams R and Q, toperform their respective duties-also the chisel head G to come down torest or to allow the chisel to operate on the le. After the hammer Astrikes the chisel the cam R from its shape quickly raises the hammer Aby its action on the hammer handle B and allows the levers l M and N toraise the chisel head G by means of the cam Q, and while both hammer Aand chisel holder G are up the eccentric cam S presses down the rod Ywhich gives motion to the ratchet wheel U and screw B advancing thecarriage X the distance of one tooth. When the cam Q releases the leverN and allows the chisel head G to come down when the cam R releases thehammer handle and allows the hammer A to strike the chiseland completingthe revolution of the machine and thus advancing tooth after tooth untilthe tile is completely cut when the handle Z comes in contact with thestop V when the action of Z releases the nut Z and which is forced upfrom the screw B by the spring a and leaves the bed or carriage X atliberty to be run back. At the same time of the action of the stop V thehandle Z releases the lever K and which throws the belt on the pulleyNA, (by means of the shipper rod V) which is connected with theeccentric P to which is afliXed the pawl C which works in the rack lVand gigs back the carriage X until the pawl rests upon the plane pieceof sheet iron Z which is clamped to the rack l/V by means of the clamp eand when the carriage stops. l/Vith the Same motion of Z the stop l/ isthrown so as to catch the hammer handle B and the chisel lifter N andleaving the machine in the same position as when started.

l/Vhen the operation of cutting the file on one side is completed theiile is reversed and the other side presented for operation. For theautomatic graduation of the blow I employ the pinion C which works inthe rack W fastened to the carriage X and advancing with the carriage Xcauses the pinion O and the cams F, F, to revolve pressing down theguide G, G, which in its turn is connetced with the rods T T on whichthere are springs S S, the lower ends of which rest on the vibratingframes D P R Q-connected at D D with the shaft I and secured to thehammer A and hammer handle B by piece C secured in hammer A. As the rodsT are drawn down by the action of the cams F F, the springs S S are madeto act with greater force on the hammer through the vibrating frame D PR Q in the same manner as in the original patent, while at t-he sametime rods T are free from the vibration they receive from the rise andfall of the hammer owing to the construction set forth in the aforesaidpatent.

I do not claim the manner of automatically graduating the blow by theaction of the cams and springs, but

I claim as an improvement on the mode patented by Conklin, Sidman, andWheitnerl. The jointed frames P Q R D for transmitting the graduatingeifect of the springs to the hammer, so that the rods holding saidsprings will not vibrate from the movement of the hammer.

2. I also claim the combination of the lever jaws with the spring tangholder, arranged and operating substantially as and for the purposes setforth.

ISAAC PI. COLLER.

Witnesses JOHN D. B. COLLER, AAR/1N FROST.

